44 results about "Impact crater" patented technology

A system for quantifying surface characteristics detects and quantifies characteristics of a surface of an object. For example, the system may quantify changes in surface roughness without contacting the specimen and without requiring precise temporal or spatial stability. The system may also quantify the evolution or progression of a particular characteristic of a surface, such as a defect, a slipband, a crack, a microcrack, a pit, a damage feature, corrosion, a contour change, an impact crater, a change in residual stress, and so on. The system may include an energy source, a detector section, and a process section. The energy source transmits a source signal to the surface of the object. The source signal is specularly reflected and/or scattered by the surface to yield one or more received signals. The detector section receives the received signal and, in turn, provides a detector signal indicative of the received signal. The processor applies an algorithm to the detector signal to quantify an evolution in one or more characteristics of the surface.

A set of progressive golf clubs with an elliptical pad construction on the back of the striking face that corresponds to a location, shape and size of a predetermined golfer's impact pattern for the lofts and lengths of each of the golf clubs in the set. The elliptical pad progressively changes in location, shape and size from the long irons, to the mid irons, to the short irons, and to the wedges, based on the location, shape and size of a predetermined golfer's impact pattern for each of the long irons, mid irons, short irons, and wedges.

The invention discloses an end-to-end impact crater detection and identification method based on a fully convolutional neural network structure. According to the method, detection and identification of impact craters in a celestial remote sensing image are realized synchronously. A network established according to the method is named as CraterIDNet. The established network is composed of two impact crater detection channels and an impact crater identification channel. Network weight parameters are only composed of convolutional layers and have no fully connected layers. According to the method, for the impact crater detection channels, a candidate box scale optimization and density adjustment mechanism is provided, the optimum candidate box selection is realized, the detection performancefor small impact crater targets is greatly improved, moreover, synchronous detection is carried out on multiscale impact crater targets through utilization of different receptive fields, and the network has the capability of detecting the large-scale range changing impact crater targets. For the impact crater identification channel, grid pattern graphs with rotation and scale invariance are generated through utilization of a grid pattern layer, so the impact crater identification is realized without establishing a matching feature database According to the method, the identification robustnessis improved.

The invention discloses a DEM-based automatic identification and boundary extraction method of a moon surface impact crater. The method comprises the following steps that 1, catchment analysis is conducted on a moon surface DEM elevation domain, and catchment dividing and generating are conducted; 2, spatial alternation is conducted on the DEM elevation domain, and the processed moon surface elevation domain is changed to an artificial terrain domain to be used for identifying sunken areas of different sizes; 3, edge expanding is conducted on the sunken areas through a neighborhood expansion algorithm, and a complete impact crater area is obtained; 4, the boundary of the impact crater area is fitted through the Fourier Series, and the precise shape of the impact crater is extracted. The problem that the complex moon surface is complex due to the overlaying impact craters and is difficult to identify completely is solved, the integrity of the identifying result is guaranteed, the boundary of the impact crater object is fitted through the Fourier Series, and the actual shape parameter of the crater is extracted, and accuracy of the extraction result is guaranteed.

The invention discloses a remote-sensing-data-based geological mapping method of a lunar-surface impact crater. The method comprises: carrying out data processing on a lunar surface image and topographic data; determining an absolute age of an impact crater; identifying a linear structure of the impact crater; carrying out geological unit division of an impact crater; and with a DEM covering an impact crater region and image data, carrying out identification of feature points corresponding to topographic relief and luminosity changing and connecting the feature points expressing the same unitsand using feature lines as boundary lines of different geological units of the two-dimensional impact crater plane. With the method disclosed by the invention, a high-spatial-resolution impact cratergeological map with integration of the landform and geological information is generated and is used as an important basic map and component for the lunar regional geological map drawing, so that needs of follow-up lunar geological evolution and scientific moon study are met.

A helmet cover comprising an outer shell and a series of internal supports, wherein the helmet cover further comprises an outer shell comprised of a material designed to fracture at the location of an impact greater than a threshold impact, providing an indicator of the strength and location of the impact, and dispersing the force of the impact around the rigid shell of the helmet. The helmet cover further comprises a marker device adapted to release a marker when an impact greater than a threshold impact is realized on the helmet cover. The helmet cover is preferably a thermoplastic material which is not cellular in nature.

For determining an impact index which indicates the image or damage caused by an earthquake to a portfolio, an equation is stored for calculating a local earthquake intensity for a geographical location. The portfolio includes geographical locations and individual weighting factors assigned to the geographical locations. Furthermore, for the geographical locations stored are one or more impact ratio tables including impact ratios for different earthquake intensity levels. The impact index is calculated for the geographical locations by determining in each case the impact ratio for the local intensity at the respective geographical location, and adding up the impact ratios weighted in each case by the weighting factor assigned to the respective geographical location. An impact index that reflects the geographical distribution of the portfolio can be determined, without the need for a network of seismological measurement stations associated with the geographical locations.

The present invention is particularly, but not exclusively, useful for reducing wear of component parts of impact crushers caused by earth aggregate flows during operation of impact crushers. The present invention includes a stepped central feed cone that allows for cylindrical carbide rods to be press fit therein to reduce wear. The downward steps of the stepped cone urge material fed to the stepped cone outwardly to the table. The top surface of a first rod inserted into a first bore formed in the impeller housing extends a distance beyond the bottom of a second bore on the next step up. The first rod protects the housing material forming the second bore from being washed out by material flow. In one embodiment, the impeller shoes have a geometric shape that reduces excessive normal forces and accompanying high friction of the material against the shoe. The reduction in high friction significantly reduces the wear rate.

The invention discloses a novel peening hammer of an impact crusher. The novel peening hammer comprises hammer bodies and a ring body, and the ring body is in a circular ring shape, and uniformly provided with three round through holes radially; each hammer body comprises an impact ball and a bolt, and each impact ball is spherical; each impact ball and the head of each bolt are cast-in together;and each bolt bar penetrates the corresponding through hole from outside to inside, and is in threaded connection with a nut. The ring body is made of medium carbon steel with high strength and plasticity through casting, and can not be broken, and the ring body can be used for many times; three hammer bodies are provided, not only is the weight of the peening hammer increased, but also the productivity is improved since materials may be impacted for three times by the peening hammer after the peening hammer is rotated for a cycle; since the hammer bodies can be rotated circumferentially, anypart of the high manganese steel impact balls may collide with the materials, so that the wear is uniform, and the service life is long; and since the hammer bodies and the ring body are of an assembly structure, only the worn hammer body needs to be replaced, so that the utilization rate of the materials is improved.

The invention relates to a method for determining moon-impacting point position by image data, which comprises the following steps of identifying at least one first kind impact crater and at least onesecond kind impact crater from a moon-impacting image map and extracting the information of the impact craters; calculating the tangential velocity of a sub-satellite point on the lunar true surfaceby using the first kind impact crater, transforming the velocity on the lunar reference spherical surface, and dividing the velocity into velocities along the meridian and parallel of the reference spherical surface; calculating the correction of the longitude and latitude of a starting point; obtaining the time-related functions of the longitude and latitude of the actual impact point by using the longitude and latitude of the starting point and the correction of the longitude and latitude of the starting point; and determining the moon-impacting point position according to the time-related functions combined with the actual moon-impacting time. The method can calculate and obtain the moon-impacting position and time according to the images which are obtained by a camera working at the moon-impacting moment, and provide a new method for determining the moon-impacting point even though the measure and control data can not be obtained.

The invention discloses a sandy deposited particle distinguishing method, and belongs to the technical field of sedimentology. The method comprises the following steps: collecting and processing a sample, analyzing surface roundness, disc shaped impact crater, crescent-shaped impact crater, shell like fracture, V shaped impact crater, and impact ditch of quartz particle through scanning electron microscope (SEM) images; utilizing a linear measurement method to count the surface characteristics of quartz particles, utilizing the ratio of quartz particles having impact ditches and disc shaped impact craters to all particles that linear lines go through in the linear measurement method to draw a distinguishing layout; and utilizing the ratio of quartz particles having crescent-shaped impact craters and V shaped impact craters to all particles that linear lines go through in the linear measurement method to draw a distinguishing layout. Compared with the technology of particle size analysis, the provided method has the advantages that the application range is wider, and there is no situation of multiple solutions or less situations of multiple solutions. Compared with the technology of bedding analysis, the provided method has the advantages that the particles can be researched in a microscopic level, the theoretical foundation is strong, and the judgment results are accurate.

The invention discloses an impact printer. The impact printer comprises a work box and a paper rubbing mechanism arranged in the work box; a second rotation cavity is formed in the work box, first rotation cavities which are formed in the left side and the right side of the second rotation cavity and are symmetric are formed in the work box, third rotation cavities formed in the lower sides of thefirst rotation cavities are arranged in the work box, a printing cavity formed in the lower side of the second rotation cavity is formed in the work box, a motor is fixedly arranged on the rear wallof the second rotation cavity, the lower end of the motor is in power connection with a third rotating shaft, the lower end of the third rotating shaft is rotatably connected with the bottom wall of the second rotation cavity, a fourth belt wheel is fixedly arranged on the third rotating shaft, and a fan-shaped gear located on the lower side of the fourth belt wheel is fixedly arranged on the third rotating shaft.

The invention aims to disclose novel explosion-proof glass, comprising an impact layer (1) and a protective layer (2) which are sealed with a sealing part (3), wherein the impact layer (1) is explosion-proof compound glass (5) or reinforced explosion-proof compound glass (5); and the protective layer (2) is composed of sandwich glass (14) or a plastic sheet (6); and a closed buffering chamber (9) is formed between the impact layer (1) and the protective layer (2) through the intervals of arranged buffers (8). An impact wave is buffered for the first time by arranging a protective rubber sheet in the reinforced explosion-proof compound glass; and the impact wave caused by explosion is buffered for the second time through the buffering chamber; at the same time, spattering of veneering glass fragments is further prevented by additionally adding the rubber sheet behind the protective layer; so that explosion can be prevented fundamentally; and the novel explosion-proof glass has significant effect for safety protection of banks, financial and public places.

The invention discloses an impact crusher. The impact crusher comprises a machine body consisting of an upper machine body and a lower machine body, wherein a rotor is arranged in the machine body; a cover plate is connected to the inner sides of the upper machine body and the lower machine body; an impact plate body set of which one end is movably connected to the cover plate and the other end is connected to the inner side of the machine body through a discharging granularity adjusting mechanism is at least arranged on the cover plate; an opening allowing the impact plate set to be replaced and a head cover matched with the opening are arranged on the cover plate, one end of the head cover is movably connected to the cover plate, and the other end of the head cover is connected to the inner side of the machine body through an uncovering mechanism. The impact crusher can quickly adjust the positions of impact plates to further adjust the discharging gap, brings more convenience for replacing the impact plates, improves the crushing efficiency, and reduces the accident risk.

The invention provides a global path planning method and device for a lunar rover, electronic equipment and a storage medium, and the method comprises the steps: generating an initial path from a starting point to a terminal point according to the DEM data and topographic information of a to-be-detected region; determining a target obstacle area according to feature information of a candidate obstacle area in a digital orthograph (DOM) of the to-be-detected area; the candidate obstacle area comprises an impact pit and/or a groove; and determining a lunar rover global path from the starting point to the terminal point according to the initial path and the target obstacle area. According to the method provided by the invention, the global path of the lunar rover is determined through the DEM data and topographic information of the to-be-detected area and the target obstacle area in the DOM of the to-be-detected area by adopting a hierarchical path planning mode, barrier-free driving of the lunar rover on the lunar surface is realized, the problem that the high-resolution DEM is difficult to obtain on the lunar surface is solved, and the accuracy of the detection result is improved. The safety of the lunar rover driving on the lunar surface is ensured, and the reasonability of the global planning path of the lunar rover is improved.

The invention relates to the technical field of display, and discloses an array substrate, a display panel and a display device. A pixel bounding layer formed on the substrate, the pixel bounding layer comprising a plate body, a surface of the plate body facing away from the substrate being a first surface and a surface of the plate body facing the substrate being a second surface, the plate bodyhaving a plurality of channels with openings located on the first surface, and a plurality of pixel pits formed at the bottom of each channel; Each channel has an opposite first sidewall and a secondsidewall, and the first sidewall is provided with a plurality of first depressions opening toward the second sidewall, the second sidewall is provided with second depressions corresponding to the first depressions one by one and opening toward the first sidewall, and each pair of first depressions and second depressions corresponding to each other are oppositely disposed to cooperate to form an impact crater. The array substrate can be used for reducing the difficulty of pixel inkjet printing in the manufacturing process of the display panel.

There are significant advantages to employing a diverse workforce within an enterprise. Techniques for identifying gaps in diversity hiring, promotion, and termination within an enterprise are provided herein. The techniques described herein may be used to analyze any large data set for comparison of aggregated data. Employment data may be collected and aggregated based on classifications such as ethnicity, gender, veteran status, disability status, and so forth, and within each classification the data can be aggregated for hiring, termination, promotion, and so forth. Two aggregates can be identified for comparison, and statistical scores may be generated for the first aggregate as compared to the second aggregate. Each of the statistical scores may be weighted and the scores may be combined to generate a single impact score. The impact score can be used to identify gaps in diversity employment practices within the enterprise.

The invention provides a method for monitoring an impact state of a cold heading forming machine die. The method comprises the steps of acquiring a vibration signal of a cold heading forming machine die working in a current impact state; building a variational modal decomposition model, and introducing a vibration signal to calculate an optimal solution, thereby obtaining K intrinsic mode components; performing M entropy calculation on each intrinsic mode component, and serially combining the same entropies calculated by the intrinsic mode components into corresponding eigenvectors, thereby forming a K*M eigenvector matrix; performing feature fusion on the formed K*M eigenvector matrix by using a kernel principal component analysis model, thereby obtaining an eigenvector matrix after feature fusion; and building a hidden unit logic model, and introducing the eigenvector matrix after feature fusion into the hidden unit logic model for solving, thereby obtaining a probability that the cold heading forming machine die works in the current impact state. By implementing the method, high-noise signals can be accurately extracted; good noise robustness is achieved; and the fault diagnosisprecision is improved.

The invention discloses a cooling tower sprinkler, which comprises a reverse supporting plate and a water sprinkling basin. A cover plate is fixed to the top of the water sprinkling basin through bolts. A fixed bottom plate is fixed to the cover plate through bolts. A water inlet pipe is welded to the fixed bottom plate. The top of the water inlet pipe is provided with a flange face. A bulged centering boss is arranged at the top of the water inlet pipe. The reverse supporting plate is fixed to the lower side of the cover plate through bolts. Side sealing plates are fixed to the two sides of the reverse supporting plate through bolts. An anti-impact plate is fixed between the two side sealing plates through bolts. The water sprinkling basin is arranged on the outer side of the reverse supporting plate. The water sprinkling basin is fixedly connected with the cover plate through bolts. Sprinkling protection flanges are arranged on the two sides of the lower part of the water sprinklingbasin. 2-5 rows of sprinkler heads are evenly embedded to a bottom plate of the water sprinkling basin, and each row includes 4-10 sprinkler heads. Each sprinkler head comprises a head flange at the top, a head main pipe on the lower part and an internal head nozzle. The cooling tower sprinkler has the beneficial effects that the device is low in vibration and noise; the impact of inlet water on the device is less; and the manufacturability of the device is good, and transportation and installation are convenient.

The invention relates to an evidence right and fractal-based full-moon landing area site selection method, and the method comprises the steps: obtaining a network mean value layer corresponding to each evidence factor based on grid division; calculating a prior probability of each evidence factor and a weight and a posterior probability of each evidence factor in each unit grid based on two-state variable representation; determining a first threshold value based on a fractal theory, and determining the distribution complexity of the impact craters in each unit grid according to the first threshold value; correcting the posterior probability of each evidence factor based on the index value of the unit grid; and obtaining a posterior probability graph through color rendering, and carrying out site selection of the whole-moon landing area in combination with an expert screening graph layer and an impact crater database. According to the method, the traditional mode of manually determining a suitable landing area under the engineering constraint condition according to scientific requirements is changed, the workload and human factor intervention are greatly reduced, the landing range can be well delineated without a large amount of professional knowledge, and the method has reference significance for landing area site selection in the lunar exploration task.

The invention relates to the technical field of machinery. The machining tool for a main shaft barrel of an impact crusher consists of a main shaft sleeve, a hanging ring, a tool upper gland, a clamping bolt, a tool pedestal and a pedestal fixing bolt, and is characterized in that the tool upper gland is arranged on the upper side of a boring table, wherein the hanging ring is arranged on the upper side of the gland; clamping bolt through holes are formed in side lugs on two sides of the upper gland; the tool pedestal corresponding to the gland is arranged on the lower side of the gland; bolt threaded holes corresponding to the bolt through holes of the upper gland are formed in two sides of the pedestal; the lower part of the pedestal is provided with the pedestal fixing bolt which is connected with the boring table. The tool has the beneficial effects of simple structure, convenience in use and good machining effect of an inner hole of the main shaft barrel.

The invention relates to the technical field of medical devices, in particular to an air compression atomizer. The atomizer includes a box body. A rotary drum is coaxially arranged in a conical drum.An air compressor is arranged above the rotary drum. An air outlet of the air compressor is connected to an impact plate inside the rotary drum through a jet pipe, and the impact plate is located in aposition close to the bottom plate of the rotary drum. The jet pipe penetrates into the rotary drum from the top of the rotary drum. A liquid medicine tank is arranged in the box body and is communicated with the jet pipe through a conveying pipe. An anti-backflow device is arranged in the jet pipe. A plurality of jet holes are arranged in the surrounding side walls of the upper part of the rotary drum, and a stirring bar is arranged in a water pipe near an outlet. The compressed air of the air compressor of the invention hits the impact plate at a high speed so as to form atomizing spray, and the spray forms vortex along with the rotation of the rotary drum in the rotary drum. Liquid medicine in the spray can thrown onto the drum wall of the rotary drum by the action of vortex centrifugal force, and the liquid medicine flows down the drum wall from the hole at the bottom of the rotary drum into the conical drum.

The invention relates to a road safety anti-impact plate. The road safety anti-impact plate comprises an inner side plate body, an outer side plate body and a buffering structure arranged between the inner side plate body and the outer side plate body. The buffering structure comprises a plurality of buffering cushion blocks and springs, wherein the multiple buffering cushion blocks are symmetrically arranged in the middle of the inner side plate body, and the springs are symmetrically arranged on the two sides between the inner side plate body and the outer side plate body and obliquely arranged. An installation block is further arranged in the middle of the inner side plate body and provided with a proximity switch. The proximity switch is electrically connected with a control center. The road safety anti-impact plate is simple in structure. By adopting the springs obliquely arranged between the two side plate bodies and the buffering cushion blocks, the road safety anti-impact plate is good in buffering effect and high in strength and has high anti-impact capacity. The proximity switch is arranged for detecting the impact degree so that maintainers can be reminded in time.

The present invention provides a boring dynamics simulation test system. The boring dynamics simulation test system is formed by boring simulation and test, data collection and data analysis and is configured for the simulation of impact, rotation and rotation-impact boring processes and enforcement of dynamic characteristic test under the action of material impact, rotation and rotation-impact. The boring dynamics simulation test system realizes measurement of parameters such as axle load, impact rate, drill speed, drilling rig torque, impact energy and the friction coefficient and the frictional force between the drill bit and the rock, the drilling rod vibration and the like. The material dynamics response system can perform dynamics response test such as material intensity, dynamic friction and the like in the impact, rotation and rotation-impact load in the pressure contact, non-pressure contact and non-pressure and non-contact conditions. The boring dynamics simulation test system can be applied to each drilling system and drilling parameter and material dynamics response characteristic test of impedance materials in the conditions of different impacts and rotation rates.

The invention discloses a flexible telescopic drill rod mechanism special for a leap device, and relates to the technical field of lunar exploration equipment. The invention aims to solve the problem that in the prior art, in the process of lunar soil water ice underground exploration, a detector is inconvenient to fall on the bottom of a lunar impact crater due to large size, and lunar soil underground exploration is difficult. The flexible telescopic drill rod mechanism comprises a flexible stock rod driver, a drilling system and an electric push rod. The flexible stock rod driver is installed on the upper portion of the drilling system, the drilling system is installed on the leap device, one end of the electric push rod is hinged to the drilling system, and the other end of the electric push rod is hinged to the leap device. The flexible telescopic drill rod mechanism completes movement of a leap device and sampling of lunar soil together through an electric push rod, a flexible stock rod driver and a multi-stage telescopic drill rod in the drilling system. The device is used for lunar soil detection.